from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. One of the largest land animals to ever walk the earth; an apatosaurus.
from the GNU version of the Collaborative International Dictionary of English
- n. A genus of large sauropod American dinosaurs of the jurassic era, or an individual of that genus. A length of sixty feet is believed to have been attained by these reptiles. The genus is also called Apatosaurus, and individuals of the genus are also called brontosaurs.
from The Century Dictionary and Cyclopedia
- n. A genus of huge fossil dinosaurian reptiles, notable for their small head and diminutive brain-cavity, the whole skull not exceeding some of the neck-bones in size. One species was about 50 feet long, and probably weighed 20 tons or more.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. huge quadrupedal herbivorous dinosaur common in North America in the late Jurassic
From New Latin, from Ancient Greek βροντή (bronte, "thunder") + -saurus (Wiktionary)